Lee Sungmin, (born on January 1, 1986), he was a regular DJ of Reckless Radio and is one of the two members in Super Junior who performs Chinese Martial Arts aside from Hangeng. He became a trainee under SM Entertainment after he won first place at the 1st SM Youth Best Selection Best Outward Appearance in 2001. He was then placed in an R&B project group with Xiah Junsu along with future bandmate, Eunhyuk. They later disbanded when Xiah Junsu, debuted as a member of DongBangShinKi.
In August 2005, prior to his debut, he made his first television appearance as an actor in MBC drama, Sea of Sisters. A year later, he appeared in SBS Banjun Theatre drama Finding Lost Time, as a guest star along DBSK's Micky Yoochun.
* He can speak some Japanese as seen in Suju's documentary about their fan meeting in Japan.
* Food he will never share is ice-cream.
* Cannot drink soju, only a can of beer.
* Likes nice, winsome girls.